27406641040679 has 2 divisors, whose sum is σ = 27406641040680. Its totient is φ = 27406641040678.

The previous prime is 27406641040663. The next prime is 27406641040711. The reversal of 27406641040679 is 97604014660472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27406641040679 - 2⁴ = 27406641040663 is a prime.

It is a super-2 number, since 2×27406641040679² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27406641040619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13703320520339 + 13703320520340.

It is an arithmetic number, because the mean of its divisors is an integer number (13703320520340).

Almost surely, 2^{27406641040679} is an apocalyptic number.

27406641040679 is a deficient number, since it is larger than the sum of its proper divisors (1).

27406641040679 is an equidigital number, since it uses as much as digits as its factorization.

27406641040679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12192768, while the sum is 56.

The spelling of 27406641040679 in words is "twenty-seven trillion, four hundred six billion, six hundred forty-one million, forty thousand, six hundred seventy-nine".